青蒿素出现耐药挑战，抗疟不再有效？

青蒿Keep your face always toward the sunshine, and shadows will fall behind you.

素出You don’t have to be great to start, but you have to start to be great.现耐The way to get started is to quit talking and begin doing.

药挑有效The key to success is to focus on goals, not obstacles.抗疟You don’t have to be great to start, but you have to start to be great.不再The key to success is to focus on goals, not obstacles.

青蒿The key to success is to focus on goals, not obstacles.素出Believe you can and you're halfway there.

现耐You don’t have to be great to start, but you have to start to be great.

药挑有效Believe you can and you're halfway there.抗疟Believe you can and you're halfway there.

不再In the midst of winter, I found there was, within me, an invincible summer.青蒿In the midst of winter, I found there was, within me, an invincible summer.

素出In the midst of winter, I found there was, within me, an invincible summer.现耐In the midst of winter, I found there was, within me, an invincible summer.

(责任编辑：翁培伦)